anyone got the pro kit springs installed in their car??? hows the ride quality is what i wanna know.


pics?

 

i dont have them on my cobalt but i have them on my mustang w. tokico illumina 5 ways. ride is just a tad stiffer than stock and after 2 years the springs have yet to sag.

 

not worth the money..

 

no?? what would you recommend?? cuz this seems to be the most put out springs for cobalts. and the progress and sportlines are too much of a drop. but i mean, if this is all i can find i might just go progress or something. i need some opinions

 

sportlines.. they are honestly not that much of a drop. I would like a little more drop and i have a body kit, and the roads here are in constant construction. IMO the prokit looks like stock, hence a waste of money.

 

ooo. gotcha. how is the ride on the sportlines then? i heard its horrible. one guy even said hes goin back to stock because its that bad.

 

I have a sportslines with koni struts. It rides just fine to me

 

pro kit is not about the drop obviously, its about improving handling which they do without slamming your car to the ground which is a problem for people in certain areas. i know with my stock suspension i bottom out of my driveway all the time.

 

I got the prokits and they look and feel great. I couldn't drop the car another inch so i went with the prokit, it drops you, it levels you out, and trust me you can tell.

When i parked next to another cobalt that was at stock height, there was a very noticeable difference. If you want the ride, the handling, and the quality (not to mention its easier on your struts) but not the risk of grinding over any bump i would suggest the prokit.... WELL WORTH THE MONEY!!

I got a good inch on my LT, but the ride is absolutely improved

 

Only idiots buy performance springs soley on how it "looks."

The prokit and sportlines have a different spring rate compared to stock. What I'm curious about is if they are two different spring rates and just different heights or if that changes between them as well. I also would love to know the springs rates of stockers to compare. Anyone have that info handy?

 

Sportlines are the way to go.

Check out the site, we have them in stock...

 

What makes you say that Aaron? Other than the fact that you're stocking them. I know you have a business to run and I'm not debating that. I think you're one of the best vendors on this site, but:

I'm honestly interested in the spring rates, not the ride height. When you start dropping ride height, you also change the angle of the driveshafts and their correlation to the spindles. You can reverse this by putting shim plates in and raising the transmission, but that's more work than it's worth unless you are sponsored. I'm looking for increased spring rate with stock ride height. Don't you stock prokits at all? Can you contact your Eibach rep and find out the specs on sportlines/pro kits and stock?

 

i think ttr stocks pro kit but based on looks i think he is saying the sportlines are better which i agree, but im not going for looks, im going for better handling with keeping the car practical.

 

And the winner is......


Eibach PRO-KIT!!!

I've already spoken with a few SS/SC's that swapped out the stockers for the prokit. the height drop is 0 in front and .5" in the back... but the response and handling... is 10x better

 

I'm waiting for someone to give specs on the pro kit and sportlines. As far as I know right now, they're the same progressive spring rate, which means they'll drive the same, just not lower you as much...

 

dubs, i believe you are right.... let me do some research

"Only simple linear springs have a spring rate. A sophisticated progressive Eibach Pro-Kit spring has a load/deflection characteristic."

When they speak of Pro-kit they are referring to the whole line of springs... sportlines are in their pro-kit line.

Basically, from what I can find, the only real difference is ride height, they handle and ride the same. there may be less bodyroll from sportlines just because the CG is lower.

 

Perfect, thanks for the research!

I'm outta rep for the day, but I'll hit ya' up tomorrow when my mom deposits more in my account...

 

We do also stock the pro kit, but the drop IMO is so low on the pro kit the sportlines you will notice... This is why I stated what I did. We are not stating it to make $, as we can get you both, but trying to help you make a better choice

Progress and sportlines both are a lowering rate you will notice, again pro kit you might not notice much improvment in height.

 

lol mom.. hahaha you're welcome. ive done alot of research on it all cuz im looking to get into auto xing and those guys want some body roll to throw the car into turns. if you look at alot of the guys on here are are doing it (blktrax, bluebaltjim and others) they are all running the prokit.

basically the difference is strictly aesthetic

 

Well, that's given, Pro Kit does not drop height in the front and only drops .5" in the rear. Like I stated earlier, there are adverse effects when dropping the car w/o compensating by shimming the tranny up. So, I guess, what I'm trying to say is that both Eiback options improve handling; however:

Sportlines - With the lower center of gravity, sportlines will most likely produce less body role as compared to the Pro Kit. They will also make the car sit lower and look better. On the other hand, the amount they lower the car may weeken drive axle components due to the driveshaft angle being changed.

Pro Kit - Without lowering the vehicle, other than evening out f/r, the Pro Kit offers no visual appeal. Also, being a higher ride height than the Sportlines will allow more body role. The appeal to this kit is switching to a more firm progressive rate spring that will offer better handling over stock components without comprimising drive axle alignment.

 

I am willing to bet that the difference in ride height between the prokit and the sportlines is undistinguishable in the amount of body roll they both have. It may be that the prokit does have a bit more but i very highly doubt anyone could tell the difference. I assume this because as far as i know the only difference between the two are the amount or dead coils. Which would mean the the amount of active coils (and therefore amount of suspension travel) is the same between both the sportlines and the prokit, they both have the same amount of allowable movement that could cause body roll. The prokit does not "suck" and is well worth the money. I drive my car 365 days a year over bad roads and through the winter, i wanted the clearance for any condition and the performance for hard driving like more trips to the track. Its all what you are looking for.

 

but if u want to keep stock struts its prokit all the way....my buddy got tenzos...same drop as sportline and his car rides like crap...but if u have the cash do both at the same time(sportlines with shocks)...im going pro....i want less wheel gap but dont wanna have to worry bout struts...and roads suck round here...

 

coilovers ftw